Matematika Q. [+8] f(x) = 5x + xx - 7xf(3) = ?​

sylvesterblandaulv – June 06, 2023

Q. [+8]

f(x) = 5x + xx - 7x
f(3) = ?​

Penyelesaian :

f(x) = 5x + xx - 7x

f(3) = 5(3) + 3(3) - 7(3)

f(3) = 15 + 9 - 21

f(3) = 24 - 21

f(3) = 3

[tex]f(x) = 5x + xx - 7x[/tex]

[tex]f(3) = [/tex]

[tex] = f(3) = 5(3) + 3(3) - 7(3)[/tex]

[tex] = f(3) = (5 \times 3) + (3 \times 3) - (7 \times 3)[/tex]

[tex] = f(3) = (15 + 9) - 21[/tex]

[tex] = f(3) = 24 - 21[/tex]

[tex] = f(3) = 3[/tex]

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